| Term | Translation | Definition |
| failure to feed (FTF) | | ... |
| field-strip, disassembly | | ... |
| finish | | ... |
| fire selector | | ... |
| firepower | | ... |
| firing pin | Schlagstift | ... |
| firing pin safety | | ... |
| firing pin spring | | ... |
| first aid | | ... |
| fixed sights | | ... |
| flash suppressor, flash hider | | Manipulates vented gases in order to reduce or eliminate muzzle flash.... |
| flat nose bullet | | ... |
| flesh wound | | ... |
| flint-lock | | ... |
| flobert cartridge | Flobertpatrone
| ... |
| flobert gun | | Firearm using the Flobert cartridge.... |
| fold crimp, rose crimp | Sternfaltung | ... |
| follow-up shots | | ... |
| forearm, handguard, forestock, forend | Vorderschaft
| ... |
| forend tip | Vorderscheftsabschluss | ... |
| forensic ballistics | | ... |
| fragment | | ... |
| frame | Revolverrahmen
| ... |
| friendly fire | | ... |
| front-sight cover | Kornschutz
| Protects the [[front sight]] from damage caused by normal field use... |
| front-sight, foresight | Korn | ... |
| full jacketed bullet, full metal cased bullet, full metal patched bullet, solid jacket bullet, solid bullet | Vollmantelgeschoss, Ganzmantelgeschoss | ... |
| full-jacketed bullet | Voll-, Ganzmantelgeschoss
| Soft lead core of the bullet is covered by another metal, usually copper... |
